Which of the following non-metal is good conductor of electricity?
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The number of protons in an atom of an element A is 19 then, the number of electron in its ion A+ is:
Which one of the following metal reacts vigorously with oxygen and water?
The property of metals by which they can be beaten in to thin sheets is called-
Which of the following metals is extracted only by electrolysis?
Which of the following metals does not displace H2 gas from dilute HCl or dilute H2SO4?
The property of metal by which it can be drawn into wires is called
Which of the following metals will not react with oxygen,even when heated very strongly in air?
Aluminium is commonly used for making cooking utensils. What properties of aluminium make it suitable for this purpose?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point
Metal A when dipped in solution of salt of metal B, then metal B is displaced this shows that
An iron nail is dipped in copper sulphate solution. It is observed that
Which of the following metal can we cut with the knife –
Which of the following metals is less reactive than hydrogen–
Which of the following metal react vigorously with oxygen–
Which metal is used for making foils used in packing of food materials –
The second most abundant metal present in the crust of the earth is–
146 videos|358 docs|249 tests
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146 videos|358 docs|249 tests
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